Improved car brake and starter



D. M. MOORE.

Car-Starter..

Patented July20,` 1869 METERS. FMOTQ-LITHQGRAFHER. WASHINGTDN, D C,

PATENT OFFICE.

DAVID M. MOORE, OF WINDSOR, VERMONT.

IMPROVED CAR BRAKE AND `STARTER.

Specieation forming part of Letters Patent No. 92,869, dated July 20,1869.

To all whom it may concern:

Be it known that I, DAVID M. MOORE, of Windsor, in the county of Windsorand State of Vermont, have invented a new and usefulPower-RetainingBrakeforRailroad-Oars5 and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making part of this specification, inwhich- Figure l is a plan or top view of a car-truck with my improvementattached, with a portion of the spring-tube removed to show thearrangement of the spring therein. Fig. 2 is a sectional elevation online a: of Fig. l; and Fig. 3 is an end view, showing the arrangement ofthe gear-wheels and the braces for throwing them in and out of gear witheach other.

Corresponding letters refer to corresponding parts in the several gures.

This invention relates to a power-retaining brake for street and othercars, which is to be so arranged that the force expended in stopping thecar may be stored up for use in starting the same; and it consists inthe combination and arrangement of the parts, as will be more fullyexplained hereinafter.

A 4in the drawings represents the framework of the car or of a truck fora ear, which may be constructed as shown in the drawings, or in anyother suitable manner, it being provided with the necessary jaws andboxes for the reception of the journals of the axles. B B represent theaxles, and B B the wheels, which are to be of any approved construction,and may be secured to the frame of the carin any of the well-known Ways.

O C represent beveled gear-wheels, which are to be provided with hubsupon their outer surfaces, in which there are to be formed grooves forthe reception of the bifurcated end of a lever or of a pin secured tosuch lever, for the purpose of throwing such wheels int'o and out ofgear with another similar wheel, hereafter to be described. These wheelsare to be bored out, and fitted to slide freely upon one of the axles ofthe car, said axle having a feather fitted into it at the points overwhich such wheels move, for the purpose of entering a spline cut in thehubs of the wheels, which arrangement is for the purpose of preventingthe wheels from rotating upon the axles and compelling them to rotatetherewith.

D represents a beveled gear-wheel, which is to be of the same size andpitch as those above described, and which is to be secured to averticalstud, D2, the lower end of which has its bearing upon the axle of thewheels C C', while its upper end enters and is supported by theframe-work of the car. The location of this gear-wheel is to be at ornear the center of the car and immediately between the wheels C O, sothat either or both of these wheels may be made to mesh into it.

.Dl represents a drum or pulley, which is to be of a diameter nearlycorresponding with the inner ends of the cogs upon the wheel D, butwhich should be enough smaller to allow a flange upon its upper end torotate within such cogs, its lower end being provided with a similariiange, to prevent the elastic band from running @if from it while beingwound thereon. This drum is to-betted to and turn upon the vertical studD2, and is to be provided upon its upper end with a recess ordepression, as shown in Fig. 5, which is to be of graduallyincreasingdepth from the point where it commences to its termination, .where it isto be of sufficient depth to receive the end of a spring-pawl, d,secured to the under side of the gear-wheel D, which pawl is forced intosaid groove in the drum of the spring d', as shown in Fig. 4. The objectof the above-described arrangement is to permit the wheel D to turnfreely in one direction without carrying the drum with it, but, whenturning in the opposite direction, to compel the drum to rotatetherewith, and thus cause the spring E to be elongated or compressed,according to its arrangement within the tube E, and the power orresistance used in stopping the car to be stored up or retained in suchspring, to be used in starting the car when it becomes desirable.

D2 represents the vertical shaft of the gearwheel D above referred to,having upon its lower end a socket or box, through which the car-axlepasses, and serves as a support for such vertical shaft, while its upperend passes into the frame-work of the car, as above described. l

E represents a tube of metal, or it may be of wood, which is to besecured to the frame of the car in such a manner as tobe firmly heldthereby, and that its open end shall be just in the rear of the drum D,and its center be in or about in line with the outer surface of suchdrum longitudinally, or in the line of the length of the car.

E' represents a spring, which may be of rubber or of some equivalentmaterial, or it may be partly of rubber and partly of metal, as shown inFig. 2. In either case it is to be secured to the rear end of the tubeat one of its ends, while the-other end is to be attached to theperiphery of the drum D, so that as said drum rotates the spring shallbe elongated.

F F represent levers, which are to be pivoted to the frame-work of thecar in such a position as to be easily accessible to the driver orbrakeman, while their lower ends connect with horizontal levers Fl whichoperate upon the gear-wheels C C for the purpose of moving them upon theshaft.

The operation of this device is as follows: The parts having beenconstructed and arranged as described and shown, when the car is to beput in motion the levers F F are to be placed in such a position as tothrow both of the gear-wheels C C out of gear with the wheel D, whichwill leave the irst-named wheels to revolve with their axle withoutimparting motion to wheel D or the drum D.

Upon arriving` at any point where it becomes necessary to stop the carthe right hand is to be manipulated so as to throw the gear-wheelconnected therewith into gear with wheel D, when the drum will berotated and the spring will ibe drawn out, which operation tends to stopthe car. When this operation has been performed and the car brought to astate of rest, the left hand lever is to be moved to such a position asto bring the wheel connected therewith into gear with wheel D, whichwill-prevent said wheel from turning in either direction and retain thespring in position to aid in starting the car, which is effected, whendesirable, by throwing one of the wheels Gor C out of gear with thewheel D.

The direction in which the car will move will depend upon which of thewheels is released from gear with the wheel D. If the right-hand leveris left in its position the car when it starts will move in a directionoppcsite to that in which it was moving when the spring was elongated;but if the left-hand one be left in position, and the ri ght-hand one beplaced in such a position as to remove its gear from the wheel D, thecar will move in the opposite direction.

It is apparent that either or both of the axles of a car, or of thetruck of a car, may be provided with the above-described mechanism, sothat when it is used on street-cars which are drawn by horses each endof the car may be provided with the means of stopping and starting, orthe levers which move the wheels C G' may be so arranged as to beoperated from both ends of the car.

Y It should be remarked, however, that when the levers are arranged asin the present case, and the car is moving forward, (assuming the end ofthe car to which the levers are attached to be the front end,) it cannotbe stopped by the manipulation of the left-hand lever, as, if the gearto which it is attached is thrown into gear with the wheel D, the drumaround which the spring is wound will not rotate, it being released fromthe control of wheel D by means of the sprin g-pawl upon its upper end,as above described. When the car is moving in the opposite direction tothat last described, the left-hand lever is to be used in stopping thecar, and then either wheel released from gear in starting, as in theformer case.

Having thus described my invention, what I4 claim, and desire to secureby Letters Patent, is

1. The combination and arrangement of the gear-wheels C, C', and D, drumDl, and spring E and axle B, substantially as and for the purpose setforth.

2. The combination and arrangement of the gear-wheel D, drum D1, andvertical shaft D2, substantially as and for the purpose set forth.

3. Supporting the vertical shaft D2 in a bearing formed upon the axle Bof the car, substantially as and for the purpose set forth.

4. The arrangement of the pawl d and spring d, with reference to thedrum D1 and gearwheel D, substantially as and for the purpose set forth.

5. The arrangement of the tube F, which incloses the spring, withreference to the drum 21,1 substantially as and for the purpose speci-In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

DAVID M. MOORE.

Witnesses z:

J oHN S. MARCY, SAML. R. S'rocKEn.

